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Table 1 A summary of the Clubfoot Assessment Protocol (CAP) and its cut-off points.

From: Motor ability in children treated for idiopathic clubfoot. A controlled pilot study

Items

Scores

Cut-off

Mobility I

Total: 0-20

≤ 15

Ankle dorsal extension, plantar flexion, heel varus/valgus, eversion/inversion and forefoot adduction/abduction (5 items)

Item level: 0, 1, 2, 3 and 4

≤ 2

Mobility II

Total: 0-8

≤ 6

Length of toe flexors (2 items)

Item level: 0, 2 and 4.

≤ 2

Muscle function

Total: 0-8

≤ 6

Strength of foot extension and eversion (2 items)

Item level: 0, 2 and 4.

≤ 2

Morphology

Total: 0-16

≤ 12

Tibial torsion, heel and forefoot position, cavus or planus. (4 items)

Item level: 0, 2 and 4.

≤ 2

Motion quality I

Total: 0-16

<12

Walking, running, toe walking, heel walking (4 items)

Item level: 0, 1, 2, 3 and 4.

≤ 2

Motion quality II

Total: 0-8

≤ 6

one-leg balance, one-leg hop (2 items)

Item level: 0, 1, 2, 3 and 4.

≤ 2

CAPtotal (feet level)

0-76

≤ 57

CAPtotal (child level)

 

≤ 57 (bilateral)

≤ 66.5 (unilateral)

  1. Item level scores: 0 = cannot/++ poor, 1 = very deviant/+ poor, 2 = deviant/poor, 3 = slightly deviant/slightly poor and 4 = within normal.